Michigan frost dates: T
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Tawas City | May 8 | Oct 5 | 150 d | 5b |
| Taylor | Apr 20 | Oct 27 | 190 d | 6b |
| Tecumseh | May 3 | Oct 13 | 163 d | 6a |
| Tekonsha | May 2 | Oct 13 | 164 d | 6a |
| Temperance | Apr 23 | Oct 23 | 183 d | 6b |
| Thompsonville | May 7 | Oct 20 | 166 d | 6a |
| Three Oaks | Apr 19 | Oct 27 | 191 d | 6a |
| Three Rivers | Apr 30 | Oct 17 | 170 d | 6a |
| Tipton | May 5 | Oct 10 | 158 d | 6a |
| Toivola | May 23 | Oct 1 | 131 d | 5a |
| Topinabee | May 21 | Sep 27 | 129 d | 4b |
| Tower | May 22 | Oct 2 | 133 d | 5a |
| Traverse City | May 9 | Oct 15 | 159 d | 6a |
| Trenary | May 27 | Sep 28 | 124 d | 5a |
| Trenton | Apr 20 | Oct 27 | 190 d | 6b |
| Trout Creek | May 31 | Sep 19 | 111 d | 4b |
| Trout Lake | May 21 | Oct 1 | 133 d | 5a |
| Troy | Apr 26 | Oct 22 | 179 d | 6b |
| Trufant | May 18 | Sep 28 | 133 d | 5b |
| Turner | May 5 | Oct 10 | 158 d | 5b |
| Tustin | May 15 | Oct 1 | 139 d | 5a |
| Twin Lake | May 8 | Oct 11 | 156 d | 6a |
| Twining | May 5 | Oct 10 | 158 d | 5b |